The rap during Moment of Surrender live (especially the Wide Awake in Europe version.)

Very true. I was at the show, actually and definitely felt that "chill down the spine" at that moment (of surrender). Intense.

Also, to me, there is this note and tone Bono hits in One when he sings "same" in "do you feel the same". I'm pretty sure he couldn't make it like that again if he wanted to. That's the sort of thing you have to catch "in the moment".

Specifically, the intro of Streets from AIWIY and after Bono completes his lap of the stage.Out of Control, after the little interlude where Bono talks about the band and thanks the fans and then bursts back into song and the whole crowd goes crazy and the camera pans up. So good.